Sash holder



May 25, 1954 FOSTER 2,679,415

SASH HOLDER Filed March 25, 1949 2 Sheets-Sheet l INVENTOR. fbwwilFaa-rsz E. E. FOSTER May 25, 1954 SASH HOLDER 2 Sheets-Sheet 2 Filed March 25, 1949 INVENTOR. BY jbm/v 5 F55??? Patented May 25, 1954 SASH HOLDER Edwin E. Foster, Austin, Tex.,

Ironers, Inc.,

assignor to Majik- Austin, Tex.

Application March 25, 1949, Serial No. 83,485

7 Claims.

This invention relates to a sash holder for windows and more particularly to a holder for both the upper and lower sashes of sliding windows.

It is therefore an object of the invention to provide a frictional sash holder which is adapted to be mounted in or adjacent to a parting stop and having friction shoes to bear on the upper and lower sashes of the window. 'A further object of the invention resides in the provision of a sash holder for windows in which the holder provides a one-way friction in that it has a minimum of friction for the up movement of the sash and an adjustable and predetermined amount of friction for the down movement.

Another object of the invention resides in a sash holder in which a spring member cooperates with a ball adjustable in a cavity in the spring to apply the proper pressure on the Window sash during its movement and to hold it in position in the window frame in its travel up and down the frame.

It is also an object of the invention to devise a sash holder for windows which is simply applied in the parting stop of the window.

Further objects will be apparent from the following description when considered in connection with the accompanying drawing in which:

Figure 1 is a side elevation of a portion of a window showing the sash holder fixed in place,

Figure 2 is an elevation of the holder with the shoe and its spring removed,

Figure 3 is a longitudinal sectional view of the sash holder,

Figure 4 is a cross sectional view of the holder housing or casing taken on line 44 of Fig- 3,

Figure 5 is a perspective view of a portion of a window showing a modified sash holder applied thereto,

Figure 6 is a longitudinal section of the holder of Fig. 5,

Figure 7 is a front elevation of the detail of a spacer plate,

Figure 8 is a side elevation of the spacer plate of Fig. 7,

Figure 9 is a top view of plate,

Figure 10 is a front view of the casing of the holder of Figs. 5 and 6,

Figure 11 is an exploded view of the holder of Figs. 5 and 6, and

Figure 12 is a front elevation of the spring of the holder of Figs. 5 and 6.

A suitable aluminum die cast housing I is provided with a pair of pockets 2, which accommodate friction shoes 3 (which can also be die the holder and spacer cast or made as metal stampings of any suitable metal). Each shoe 3 is provided with a leaf spring 4 riveted to it at the point 5, and another pair of springs 6 is also provided which is similar to the spring 4 and is riveted to a par tition 1 of the housing I at the point 8. Each of the springs 4 and 6 is provided with a pocket 9 and 9' respectively, in which a ball bearing H) can roll as each shoe 3 is moved up or down. The spring 6 is supported at its other end by means of and against a cam H which can-be turned for adjustment of the tension of the spring by means of a disc 22 by a screw-driver or nail inserted through a slot I 2 formed in one side wall of the housing I, Figs. 1 and 2. The turning of this cam ll moves the pocket 9' further away from or nearer the partition I to adjust for a heavier sash or to adjust for variations in thickness such as a sash which is without weather stripping or is thinner. The spring 4 which is riveted to the shoe 3 at the point 5 stands away from the inner side of the shoe in Fig. 3 which is its normal position before it is placed into the window. This spring 4 flexes at the point I3 when the sash is forced against it at the time it is installed and the force is relatively light but is enough to maintain the friction shoe 3 in good contact with the sash. As the sash M, Fig. l, is moved downward the right shoe 3, Figs. 1 and 3, and its spring 4 will move downward due to the fact that the ball I 0 will roll in the pockets 9 and 9'. The spring 4 will contact the inner wall of the shoe 3 at the point l5 during the first part of this stroke of the ball I!) and during the remainder of the stroke downward of the shoe 3 in relation to the housing I, either or both of the springs 4 and 6 which are now supported at each end, will flex slightly until the bottom of the shoe 3 has contacted the bottom of the housing I at the point I5, Fig. 3. Further downward movement of the sash l4 will cause the sash to slip against the shoe 3 at the point ll, Fig. 1, and this friction will remain practically constant throughout the stroke. When the sash I4 is lifted upward, the ball I 0 will roll up the inclined pocket 9' and remove most of the friction between the shoe and-the sash 14. Only the friction due to the flexing of the spring 4 at the point l3 will remain and this is sufiicient to keep the shoe 3 in good contact with the sash [4.

As clearly seen in Fig. 1 each shoe 3 bears against a window sash such as upper sash l4 and lower sash [8. The holder is mounted in the parting strip I 9 and is suitably secured to a frame of the window by means of screws 20 passing through holes 2| in the casing I.

In the form of the sash holder of Figs 5 to 12 a pair of casings 23, which may be die cast of aluminum or any other suitable metal or alloy, are each provided with a web .24 and a socket 25. Just in front of the socket 25, Fig. 6, there is provided a pair of pins or lugs 26, one on each side of the casing. A pair of these. casings 23 are secured in the parting strip 2'! at best shown in Fig. 6 which also shows the upper sash 28 and the lower sash 29. Also Fig. 6 shows the assembled units 30 and 3|, of which the unit-.33 is for the upper sash 28 and the unit 3| is for the lower sash 29. Behind the units there is suitably provided a. spacer plate 32 as'shownin Figs. '7, 8 and 9 provided with perforations. 33; Each casing 23 is provided with perforations 34 registering with the perforations 33 .toreceive suitable screws by means of which the units are secured in place.

Each casing is provided with a spring 35 bent into rectangular shape as best shown in Figs. 6. and 11. This spring 3.5 is provided with a slight cup-shaped depression 3% which cooper.- ates with a ball 3?, the latter being adjusted to roll in a concave depression 38 in a screw member or plug 39. The screw member 39' is threaded in the socket 2-5, and is adjustable in its position in the socket by rotation with a screw driver.

The spring 35 is preferably an integral stucture shaped as best shown in Fig. 11 and consists of a side surface portion 40 which is adapted to. bear against the respective window. Fig. 11 shows the spring 35 being placed into its housing wherein a light pressure will force it past the upperend edge of the housing, Fig. 11. In other words, the spring snaps into. place behind the lugs 25, which arev cast into the walls. of the housing; The ball: 3'! and the adjustment screw fifi are then placed in position, as shown in Fig. 6; The web 24 in the housing is to keep the spring 35 from pivoting into that part of the housing and permitting the ball to drop out. as the spring 35 is not forced out of the housing in the same manner it was placed into it, 'as shown in Fig. 11, the ball cannot get out of the pocket between the adjustment screw and the spring. The spring 35 isprovided with the cone-shaped cup. 33 the walls of which have about a slant in relation tothe adjacent part of the spring. Also the plug 33 is providedwith the. cone-shaped recess 3.8. which has the same l0. angle. As shown in the lower unit of Fig. 6, when the lower sash 29 is being raised, the center of the cone-shaped depression in the spring is in line with the center of the cone-shaped recess in the plug 39. lhis means that most of the pressure between the ball 37 and the sash 29- due to the spring, has been removed. The leg or portion 61 of the spring having the depression Zdtherein is now in its normal straight position. Only the force due to the safety pin action of closing the spring 35 from the shape shown in Fig. 11 to that shown in Fig. 6, which is a relatively light force, is acting to keep the shoe in good contact with the sash I, in order to make the ball roll against the surfaces of the cones. As the upper sash 28 is moved downward, the ball 31 in casing 30 rolls from the position shown in the lower device to the position shown in the upper device in. Fig. 6. This means that the portion of. the spring having: the depression in it had to'fiexslightly through the length of. that.

As long 4 side of the spring. It is this spring pressure which holds the shoe part or surface 35 of the spring in firm enough contact with the sash to hold the sash in place and to offer a predetermined frictional resistance to its downward movement. In the upper part of Fig. 6 the spring 35 is resting against the lower end of the pocket in the housing 30 at the point 42. In the lower device in Fig. 6, the upper' part of the spring is in contact with the upper end of the pocket in the housing 3| at the point 43. The adjustment screw 39 is turned to the right, that is, screwed in, to apply more frictional resistance and this adjustment is made at the time of installation 1 so that the give in the spring should be suflicient to take care of variation in thickness of the stile, due towet and dry weather. However, this adjustment could easily be changed by the user if it ever becomes necessary by merely rotating the screw 39.

As shown inFigs. 7. and 8', the spacer plate 32 ismade. separate from. the housing in order that an identical unit. (shown in Figure 6) may be used for both the upper and lower sashes and for either. the right hand or left hand side of the window.

The structure shown. in Figs. 5. to 12 may be easily and quickly installed without any cutting of or onthe window frame or sash and a multiple of this same unit will take care of all sizes and shapes of windows, as it is adjustable from the slightest to the heaviest. As clearly shown in Figs. 5 and 6 the tension of the. springs may be easily adjusted by a screw driver by merely turning the screw 39:.

I claim as my invention;

1. A frictional sash holder for windows and the like, comprising an elongated casing adapted to be. applied to the window frame, a springmember in the form of a shoe in the casing. mounted with limited movement parallel: to the length of the casing, and means for automatically adjusting the force of the spring member during' the sliding movement. of the sash in the frame, said means including an inclined surface in thev casing and a ball in contact therewith and the spring member, said spring member imparting friction against the sash by the shoe when the. latter is lowered, but when the sash is. raised the. spring: member will move within its limited movement. to impart little friction to. the upwardly moving sash.

2. A frictional sash holder for windows and the like to be secured in the parting strip of the window' frame, comprising arr elongated open front casing secured in the parting strip, a combined shoe and spring member slidably mounted in the casing lengthwise thereof and having a surface contacting the window sash with a force directed outwardly from the casing derived from the spring member; and means in the rear of the casing and contacting the spring member to adjust. the: force of the spring member on the shoe portion to thereby change the spring pressure on the sash, said means including an inclined surface in the casing and a ball in contact therewith and the spring member, said shoe imparting friction against the sash when the latter is lowered, but when the sash is raised the shoe will move within its limited movement in the casing to impart less friction to the upwardly moving sash.

3. A frictional sash holder for windows and the like to be secured in the parting strip of the window frame, comprising a casing secured in the parting strip and having side and end walls a combines shoe and spring member slidably mounted in the casing lengthwise thereof, parallel to the side walls and having a surface contacting the window sash with a force directed outwardly from the casing, derived from the spring member, a plug member mounted in the casing and having a cone-shaped recess therein, and a ball member in the cone-shaped recess and contacting the spring member to adjust the force of the spring member on the shoe portion by contact of the ball member in the cone-shaped recess upon movement of the shoe and spring member so that the ball will roll on the cone surface to thereby change on the sash.

4. A frictional sash holder for windows and the like to be secured in the parting strip of the window frame, comprising an open front casing having a, pocket therein formed by side and end walls and a socket member in a rear portion thereof, a spring member mounted with limited movement in the pocket parallel to the side walls thereof and being in the form of a rectangle having a shoe portion to contact the sash and a spring portion to apply force on the shoe portion, a plug in the socket member and having a cone-shaped recess therein, and a ball mounted in the coneshaped recess and contacting the spring portion to adjust the force of the spring portion on the shoe ball in the cone-shaped recess upon movement the spring pressure portion by contact of the of the spring, member during the shifting of the spring portion with the shoe portion in the pocket of the casing during movement of the sash.

5. A frictional sash holder according to claim 4, in which means are provided to adjust the plug in the socket to adjust the force of the spring portion when the sash is stationary by adjustment of the ball in the socket member.

6. A frictional sash holder according to claim 4, in which means are provided to adjust the plug in the socket to adjust the force of the spring portion when the sash is stationary by adjustment of the ball in the socket member, and in which the casing is provided with a rib portion near the adjusting means to act as a stop for the spring portion in one position of the spring member in the pocket.

7. A frictional sash holder according to claim 4, in which the spring member is provided with a depressed portion into which the ball contacts.

References Cited in the file of this patent UNITED STATES PATENTS 

